Default.aspx.cs

微信扫码关注公众号，代码整理好后第一时间通知你。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;

public partial class _Default : System.Web.UI.Page
{
    SqlHelper data = new SqlHelper();
    public string fenleiName = "";
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {

            Get_Info();
        }
    }
    private void Get_Info()
    {
        string sql = "select a.*,d.fenleiName,case when b.shuliang is null then 0 else b.shuliang end as shuliang, c.xingming   from dbo.Topic a left join(select TopicID,count(*) as shuliang from TopicRey group by TopicID) as b on a.ID=b.TopicID left join yonghu c on a.AddUser=c.yonghuhao  left join fenlei d on a.fenleiID=d.id  ";
        DataSet ds2 = new DataSet();
        ds2 = data.GetDs(sql, "ds");
        Repeater1.DataSource = ds2.Tables[0];
        Repeater1.DataBind();
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        if (Session["yonghuhao"] == null)
        {
            Alert.AlertAndRedirect("发帖请先登陆！", "Default.aspx");
            return;
        }
        Response.Redirect("AddTopic1.aspx");
    }
}